Improvement in corn planters and drills



J. L. ROBERTS. Corn Planter and Mill.

No. 222,311. Patent ed Dec. 2,1879.

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i West Plains,

JOHN L. ROBERTS, or WEST PLAINS, MISSOURI.

IMP OVEMENT IN ooRN PLANTERS AND DRILLJS.

Specification forming part. of Letters Patent No. 222,31 1, dated December 2, 1879; application filed July 19, 1879.

To. all whom it'may concern:

Be, it known that I, JOHN L. ROL ERTS, of in' the county of Howell and State of Missouri, have invented certain new and useful Improvements in Corn Planters and Drills; and I do hereby declare that the following is a full, clear,and exact description of the construction and operation of the same, reference being'had to the annexed drawings, niaking a part of this specification, and to the letters and figures of referencemarked thereon.

Figure 1 of the drawings is a representation of a plan of my corn planter and drill. Fig. 2 is a side-elevation view of the same, and Fig. 3 is a bottom View. Fig. 4 is a' detail view. I

The nature of my invention consistsin the construction and arrangement of a wheat- .(11111, which may beused as a corn-planter also, as will be hereinafter more fully set forth.

The annexed drawings, towhich reference is made, fully illustrate myinvention.

A represents the center beam, to-which are suitably connectedtwoside beams, B B, running parallel withthe center beam. These side beams are connected to the center beam by metal straps or braces a a at their front ends, and by a circle brace, b, on top, as shown.

0n the rear ends of the beams AB are mortised the seed tubes or conductors G G G, the

upperends-of which are held rigidly by means of screw-rod d and nuts 6 on both sides of each tube.

The tubes or conductors G are further strengthened by means of inclined braces f, running from their lower 1 ends to their respective beams. Each tube is provided with a plow-point, D,which is formed with a shank, E, in one piece. This shank is bent around the tube or conductor 0, and fastened thereto, as shown. c .7

The metal between the shank and point is divided on each side, as shown at :0, so that as the soil is elevated by the plow-point to said notches w it drops back through the same covers the grain.

into the furrow made by the point, and thus H is the seed-box, placed on the beams in front of the conductors, and held bymeans ot the handles F F. The front ends of these handles are fastened to the ccnterb'eam, and,

extending backward, are let into the ends of the seed-box, and further connected by a round, h, passing through the upper end of the center tube. j

In the bottom of the seed-box Hare suitable seed-openings, and below the same is a slide, G, for conveying the grain :from said box to suitable openings in the beams leading into the tubes or conductors O.

The slide Gr is operated by means of a bellcrank lover, I, and pitman J, the lever being pivoted to the under side of one of the side beams, one arm being connected to. the slide, and the other arm, by means of the pitman J, connected with a crank on an axle, m, which carries the center wheel, L, and has itszbearings in semicircular plates K, attached to and depending from the center beam.

As the machine is drawn forwardithewheel L rotates and operates the slide. g

Ineach conductor or tube 0 is a feed-gage,

a, and all the gages are connected to a single rod, 10, which passes through a slotted yoke or stirrup, M, straddling the centertube, and extending along the sides of the center beam, A, guide-pins or screwss being passedthrough the slots in the stirrup into said beam.

To the stirrup M is attached a curved notched bar, N, which extends through the middle tube, and may be adjusted to set slides or gages n, for regulating the feed of the wheat. 7

When desired to drop corn,the wheat-drilling mechanism is removed, and a corn-slide, O, placed on the beam, with a spring, t,drawing the same forward.

To one of the handles F is conncoteda rod, P, the lower end of which is, byamelbow-leyer, R, and rod S, connected with a crankshaft, V, having its bearin gs in suitable stand the tube 0, as and for the purposes herein set forth.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

JOHN L. ROBERTS.

Witnesses:

A. J. RICE, D. C. GALLOWAY. 

